Improvement in dusting-brushes



PATENT OFFICE.

THOMAS G. PORTER, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN DUSTlNG-BRUSHES.

Speciiication forming part of Letters Patent No. 117,456, dated July 25,1871.

To all whom it may concern:

Be it known that I, THOMAS G. PORTER, of the city of Louisville, in thecounty of Jefferson and State of Kentucky, have invented a new andImproved Mode of Constructing Dusting- Brushes; and I do hereby declarethe following to be a full, clear, and exact description thereof,reference being had to the letters of reference marked thereon.

The nature of my invention consists in fasten` ing the material of thebrush to the handle thereof in such a manner that in use there shall beno friction of the parts of which the brush is composed, and that theseams and joining' parts shall be covered so as to exclude dust anddirt, and present a neat and elegant appearance.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Figure l represents a side view of the brush when complete, Fig. 2, aperspective view of the screw-loop and bundles of the 1naterial,with thewire inserted 5 and Fig. 3, a like view of all the parts in a state ofreadiness tobe put together.

The screw-loop, as seen in Figs. 2 and 3, may be made of a round rod ofany suitable length, bent, and its ends lapped and welded together, soas to form a round bolt, leaving an opening or eye for the insertion ofthe wires, as hereinafter mentioned, and that both may be tapered alittle toward its top and a convex screwthread cut upon it from near theeye upward. Then I take two equal portions of sea-grass, hair, or othersuitable materia-l, and of about twice the length desired for the brush,and pass the wire around the middle of each and through the eye, asshown in Fig. 2, and' with it fasten both bundles securely together tothe eye, so that the sea-grass or hair, or other material, may hang andappear as at E in Fig. 3. I then make the socket or cap B C as shown inFig. It is a hollow tube of irregular bore, and may be cast in molds.Its upper portion is made to correspond with and fit over the lower partA of the handle,

and to abut up against and form a close joint with the shoulder of thehandle, as shown in Fig. 1, and the lower part is made to swell out intoa conical form, to fit over snugly and confine the bent bundles ofiibers composing the brush. The lower end ofthe handle, if of wood,merely may be bored for the insertion of the screw-bolt, or else bushedwith metal and a convex screw-thread cut in it for the screw-bolt. Thesocket isthen forced down over the brush material until the upper end ofthe screw-bolt projects one-half inch or so above the upper edge of thesocket. Then, for the purpose of cementing the parts together andpreventing friction, and excluding dirt, dust, and water, I make acement composed of one part of bees-wax, one part of common resin, andone part of residuary gum, or that substance which is left in the stillsafter the fatty acids have been distilled olf in the manufacture of starcandles. These three materials are melted together and constantlystirred, and when thoroughly intermixed the cement is ready for use. Theupper end of the socket is then nearly filled with the cement. The lowerend of the handle is then placed over the upper end of the screw-boltand screwed down upon it until the upper edge of the socket comes inclose contact with the shoulder of the handle at A, and the brushmaterial is drawn tightly up into the large portion of the socket, andthus the handle and the brush become as of one piece.

Vhat I claim as new, and desire to secure by Letters Patent, is-

The dusting-brush, composed of the handle F, the cap or socket B C, thewire D,the screw-loop d, and the brush material H H, in combination witheach other a-nd with the described composition, when constructed andarranged substantially as set forth and described, as a new article ofmanufacture.

THOS. G. PORTER. Witnesses:

F. H. KEAN, J. R. LINGENFELTE.

